According to the scientists, life came from ___________.
A: combination of energy and biochemical materials
B: combination of nucleic acid and amino molecules
C: nucleic acid molecules
D: amino acid molecules
A: combination of energy and biochemical materials
B: combination of nucleic acid and amino molecules
C: nucleic acid molecules
D: amino acid molecules
举一反三
- Definition of Nucleic acid Hybridization
- The<br/>isotype of Ig refers to:() A: the<br/>nature of Fc region. B: the<br/>amino acid sequence of its CD C: Its allelic form. D: whether<br/>it is membrane bound or secreted. E: The accessory molecules associate with it.
- The important substance for the special flavor of beef is ( ) in beef. A: Benzoic acid B: pyruvate C: fatty acid D: amino acid
- Moisture in food can be divided into "bound water" and "free water" according to different properties. Which of the following is not bound water? A: The first layer of water molecules adsorbed to glucose molecules B: Water molecules with unpaired electrons entering the outer empty orbits of sodium ions C: Water molecules adsorbed in capillaries in food tissue D: Water molecules bound to the negative ion of glutamic acid on the protein peptide chain
- During long term starvation, the energy in brain mainly come from A: glucose oxidation B: ketone bodies oxidation C: lactate oxidation D: amino acid oxidation E: fatty acid oxidation